Dense Magnetic Chuck?

I recently ordered a small surface grinder (may regret it, but...), and I was looking around at magnetic chucks. I noticed that "dense" magnetic chucks seem to be cheaper than others. What exactly is a "dense" magnetic chuck.

Reply to
Jerold Vann
Loading thread data ...

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.